RAS troubles seeing network

I am having some odd problems with our RAS server. I can RAS onto it OK but I am unable to connect to the network.

I am given an IP address and Gateway and all the other TCP/IP type of addresses.

When I ping any address / name I get request timed out.

I have tried using static addresses - DHCP assigned addresses.
Installed DHCP/WINS removed said services all seem to do nothing for me.

I am currently in the process of backing up before removing/reinstalling the modem/RAS/Service Packs.

Any pointers in other directions pleeeese.

NB.